ASTM C954-04
(Specification)Standard Specification for Steel Drill Screws for the Application of Gypsum Panel Products or Metal Plaster Bases to Steel Studs from 0.033 in. (0.84 mm) to 0.112 in. (2.84 mm) in Thickness
Standard Specification for Steel Drill Screws for the Application of Gypsum Panel Products or Metal Plaster Bases to Steel Studs from 0.033 in. (0.84 mm) to 0.112 in. (2.84 mm) in Thickness
SCOPE
1.1 This specification covers minimum requirements for steel drill screws for use in fastening gypsum panel products or metal plaster bases to steel members from 0.033 in. (0.84 mm) to 0.112 in. (2.84 mm) in thickness.
1.2 This specification also covers physical properties and test methods for determining performance requirements.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 The following safety hazards caveat pertains only to the test methods described in this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: C 954 – 04
Standard Specification for
Steel Drill Screws for the Application of Gypsum Panel
Products or Metal Plaster Bases to Steel Studs from 0.033
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in. (0.84 mm) to 0.112 in. (2.84 mm) in Thickness
This standard is issued under the fixed designation C 954; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 3.1.1 For definitions relating to gypsum and related building
materials and systems, see Terminology C 11.
1.1 This specification covers minimum requirements for
3.2 Definitions of Terms Specific to This Standard:
steel drill screws for use in fastening gypsum panel products or
3.2.1 steel drill screw—self-drilling tapping screw with the
metal plaster bases to steel members from 0.033 in. (0.84 mm)
ability to drill its own hole, form or cut mating threads without
to 0.112 in. (2.84 mm) in thickness.
deforming its own threads or breaking during assembly.
1.2 This specification also covers physical properties and
test methods for determining performance requirements.
4. Materials
1.3 The values stated in inch-pound units are to be regarded
4.1 Screws shall be manufactured from Grade 1018 to 1022
as the standard. The values given in parentheses are for
steel wire manufactured in accordance with Specification
information only.
A 510.
1.4 The following safety hazards caveat pertains only to the
test methods described in this specification. This standard does
5. Physical Properties
not purport to address all of the safety concerns, if any,
5.1 Metallurgical Requirements:
associated with its use. It is the responsibility of the user of this
5.1.1 The surface of the screw shall be carbonitrided to a
standard to establish appropriate safety and health practices
depth of 0.004 to 0.008 in. (0.10 to 0.20 mm).
and determine the applicability of regulatory limitations prior
5.1.2 The core hardness shall be 32 to 40 HRB after being
to use.
drawn at a minimum temperature of 625 °F (330 °C).
5.1.3 The screw shall have no band of free ferrite between
2. Referenced Documents
2 the case and core nor shall the case contain appreciable
2.1 ASTM Standards:
amounts of retained austenite or other soft constituents.
A 510 Specification for General Requirements for Wire
5.1.4 Surface hardness shall be determined by a micro
Rods and Coarse Round Wire, Carbon Steel
hardness instrument at “the root of the thread profile,” as
C 11 Terminology Relating to Gypsum and Related Build-
exposed by removal of enough material to form a flat surface
ing Materials and Systems
along the length of the screw.
C 36 Specification for Gypsum Wallboard
5.1.5 Ductility—Screws shall have sufficient ductility to be
C 1513 Specification for Steel Tapping Screws for Cold-
able to withstand a 5° bend without visible signs of fracture
Formed Steel Framing Connections
when tested as specified in paragraph 8.2.1 of Specification
3. Terminology C 1513.
5.2 Dimensions and Permissible Variations:
3.1 Definitions:
5.2.1 General:
5.2.1.1 Head Diameter—The head of the screw shall not be
1
This specification is under the jurisdiction of ASTM Committee C11 on out of round more than 0.021 in. (0.51 mm) and have the
Gypsum and Related Building Materials and Systems and is the direct responsibility
following shape and dimensions:
of Subcommittee C11.02 on Specifications and Test Methods for Accessories and
5.2.1.2 Screw Diameter— Screws shall have a major diam-
Related Products.
eter not less than 0.136 in. (3.45 mm).
Current edition approved Oct. 1, 2004. Published October 2004. Originally
approved in 1981. Last previous edition approved in 2000 as C 954 – 00.
5.2.1.3 Points, shall provide for self-drilling into steel studs
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
from 0.333 in. (0.84 mm) to 0.112 in. (2.84 mm) in thickness
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
and meet the performance tests in Section 6.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C 954–04
5.2.1.4 Driving Recess, shall be a No. 2 “Phillips” design 9.2 If two or more of the second lot fail the second test, then
with a minimum depth of 0.104 in. (2.64 mm) as determined the represented lot fails to meet the specified requirements.
with a “Phillips” pe
...
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